The NeoTrellis M4 is "some awesome hardware" as Charlotte the Spider would say. There are some pretty great demos on the Adafruit Learning System for using it.
All work and no play, well let's say the NeoTrellis isn't going to heavy lifting 24/7. Say you or your young one want a simple game in between gigs?
This tutorial turns your NeoTrellis into a simple paint program in seconds. Fun for young and old. You can change the keys to any of 12 colors (plus off/black).
Optional portable power